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Expired Canadian patentCanada

Read/write bar for multi-mode reproduction machine

CA 1203835 A · Owner: Xerox Corporation · Inventors: Banton, Martin E.; Snelling, Christopher

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A dual mode reproduction machine or copier incorporating a full width read/write bar having at least one linear array of LEDs for selectively illuminating and scanning a document original in a read mode or exposing the copier photoreceptor in a write mode. A Selfoc lens array provides a lens element for focusing each LED, the read/write bar and lens array being combined in a unitary structure mounted for selective movement between a read and write position.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted April 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 29, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 20, 1983
GrantedApril 29, 1986
Term endedApril 29, 2003
Patent numberCA 1203835 A
Classification (IPC)G03G15/32 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMay 20, 1983Patent grantedApril 29, 1986Term endedApril 29, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.